===============================================================References to Vista also apply to Windows 7.Check with System maker's Support, their on-line documentation and drivers, and their forums(if any) for known issues.Some maker's have issued BIOS and other updates to help with batteryproblems.================================================================

Do these to clear corruption and repair/replace damaged/missing system files.

Start - type in Search box - COMMAND find at top of list - RIGHT CLICK - RUN AS ADMIN

sfc /scannow

How to Repair Windows 7 System Files with System File Checkerhttp://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

Then run checkdisk (chkdsk).

How to Run Disk Check in Windows 7http://www.sevenforums.com/tutorials/433-disk-check.html

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Other information that might help :

Control Panel - Power Options - Power Plans - Change plan Settings - check the AdvancedSettings for drain and usage settings (this is how much to be used and not how much or howlong to charge).Actually what causes a lot of wear on a battery is draining it too low repeatedly.With today'ssystems over-charging is not an issue.

Here are some tips to help and troubleshoot battery related issues.Old battery? Unplug power to computer - remove battery and clean the contacts with a pencileraser (do not use this if your battery has thin slots - just clean the knife edges that fit intothem and be careful).Batteries do wear out if old, or it could be a problem with the computer.Check with the support of the system maker and many of them have on-line forums.

Newer type Litium-Ion batteries usually last longer if you do not discharge them below 30%however on a laptop that will not extend their life that much.Best is to use A/C adapterwhenever possible.

I use the free version of BatteryBar to monitor my battery.Click the Green button on theYellow box on right side of page to download latest stable version.

Solutions to common battery problemshttp://windows.microsoft.com/en-US/windows7/Solutions-to-common-battery-problems

How accurate is the battery meter?http://windows.microsoft.com/en-US/windows7/How-accurate-is-the-battery-meter

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Try this - make a Restore Point

How to Create a System Restore Point in Windows 7http://www.sevenforums.com/tutorials/697-system-restore-point-create.html

How to Do a System Restore in Windows 7http://www.sevenforums.com/tutorials/700-system-restore.html

Then Control Panel - Device Manager - Batteries - Double Click on each item - Drivers tab -Update Drivers (which may not do anything) - then Right Click and UNINSTALL each - REBOOTwhich will refresh the Driver stacks.

Problems with power usage and battery life - Mr Fixithttp://support.microsoft.com/gp/windows_battery_power_settings

Hope this helps.

Rob Brown - Microsoft MVP

Download the Microsoft Windows ISO (installation device) from the following website:

http://www.microsoft.com/en-us/software-download/windows10

Users must select the appropriate ISO, either 32 bit or 64 bit, depending upon their individual computer.

Extract the ISO file to a separate USB device or burn the program to a compact disc.

Run the Microsoft Windows 10 upgrade directly from the software that you have thus created.

Another Safe way to Repair the Problem: Battery or adapter problems or is it just Dell products are awful!:

How to Fix Battery or adapter problems or is it just Dell products are awful! with SmartPCFixer?

1. Download Error Fixer . Install it on your system. Click Scan, and it will perform a scan for your computer. The junk files will be shown in the list.

2. After the scan is done, you can see the errors and problems which need to be fixed.

3. When the Fixing part is finished, your computer has been speeded up and the errors have been removed